Abstract:
Thermally insulating and transparent laminated glass consisting of at least two superimposed sheets of glass with an interlayer of a solid aqueous alkali metal silicate between each two sheets of glass.
Abstract:
A FIRE-RESISTING DOOR HAVING STIFFENING MEMBERS INSIDE A DOOR FRAME. BOTH THE FRAME AND THE STIFFENING MEMBERS ARE COVERED WITH AN INSULATING LAYER AND A METALLIC OUTER LAYER, THE LAYERS BEING JOINED IN SUCH A WAY THAT THE UNION IS DESTROYED BY THE ACTION OF HEAT.
Abstract:
1,240,507. Fire resisting doors. BADISCHE ANILIN-& SODA-FABRIK A.G. 19 Dec., 1968 [20 Dec., 1967], No. 60333/68. Heading E1J. A fire resisting door has a frame work 1 of cement bound asbestos members with stiffening members 2 of strips of hardboard or wood-base material arranged crosswise to form cells and at least one thermally insulating layer 5 of cement bound asbestos and/or of alkali or sodium, silicate boards 6 containing glass fibres and water and which expand at temperatures above 250‹C and an outer metallic layer 7 of sheet steel or aluminium covering the layers 5 and/or 6 and secured thereto by an organic adhesive which looses its bonding properties to destroy the joint under the action of heat at temperatures of 60‹ to 400‹C e.g. epoxide resin and/or polyvinyl acetate and/or a copolymer of ethylene and vinyl acetate and/or acrylic ester, or by screws or rivets made of organic material such as mentioned above, or of Wood's metal or aluminium, or wood which are destroyed at the temperatures specified above, the edges of the door being covered with strips 8 of U- section aluminium. The gap between the strips 8 and the sheet steel plate 7 is filled with silicone rubber.